Mortality rate
hideMortality rate is a measure of the number of deaths (in general, or due to a specific cause) in some population, scaled to the size of that population, per unit time. Mortality rate is typically expressed in units of deaths per 1000 individuals per year; thus, a mortality rate of 9.5 in a population of 100,000 would mean 950 deaths per year in that entire population. It is distinct from morbidity rate, which refers to the number of individuals in poor health during a given time period (the prevalence rate) or the number who currently have that disease (the incidence rate), scaled to the size of the population.
One distinguishes:
In regard to the success or failure of medical treatment or procedures, one would also distinguish:
Note that the crude death rate as defined above and applied to a whole population can give a misleading impression. The crude death rate depends on the age (and gender) specific mortality rates and the age (and gender) distribution of the population. The number of deaths per 1000 people can be higher for developed nations than in less-developed countries, despite life expectancy being higher in developed countries due to standards of health being better. This happens because developed countries typically have a completely different population age distribution, with a much higher proportion of older people, due to both lower recent birth rates and lower mortality rates. A more complete picture of mortality is given by a life table which shows the mortality rate separately for each age. A life table is necessary to give a good estimate of life expectancy.
For more information about Mortality rate, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
News tagged with mortality
Tree deaths have doubled across the western US
Jan 22, 2009 |
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(PhysOrg.com) -- A new study led by the U.S. Geological Survey and involving the University of Colorado at Boulder indicates tree deaths in the West's old-growth forests have more than doubled in recent decades, ...
Rate of autism disorders climbs to 1 percent among 8-year-olds
Dec 18, 2009 |
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Autism and related development disorders are becoming more common, with a prevalence rate approaching 1 percent among American 8-year-olds, according to new data from researchers at the University of Alabama at Birmingham ...
New research helps explain why bird flu has not caused a pandemic
Nov 19, 2009 |
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(PhysOrg.com) -- Bird flu viruses would have to make at least two simultaneous genetic mutations before they could be transmitted readily from human to human, according to research published today in PLoS ON ...
Depression as deadly as smoking, but anxiety may be good for you
Medicine & Health / Psychology & Psychiatry
Nov 17, 2009 |
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A study by researchers at the University of Bergen, Norway, and the Institute of Psychiatry (IoP) at King's College London has found that depression is as much of a risk factor for mortality as smoking.
The importance of grandmothers in the lives of their grandchildren
Oct 29, 2009 |
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(PhysOrg.com) -- It is widely believed that women live long post-reproductive lives to help care for their grandchildren. According to the "Grandmother Hypothesis," post-menopausal women can increase their ...
Peer pressure builds more latrines than financial assistance
Sep 30, 2009 |
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Government subsidies persuade some people to change habits, but social shame works even better, suggests a recent study of efforts to reduce elevated childhood death and disease rates blamed on the microbial pathogens that ...
New research shows small increase in hospital mortality rates in the first week of August
Sep 23, 2009 |
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People admitted to English hospitals in an emergency on the first Wednesday in August have, on average, a six percent higher mortality rate than people admitted on the previous Wednesday, according to research published in ...
New study finds home birth safe
Sep 18, 2009 |
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(PhysOrg.com) -- A new study by McMaster University researchers has found low-risk women who have midwives in attendance during birth have positive outcomes regardless of where the delivery takes place.
Researchers develop tool to rank death rates
Aug 26, 2009 |
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Have you ever wondered what the chances are that you may die in the next year? Would it be from illness or an accident? Is it something you can control? Or is it completely out of your hands?
Elder self-neglect and abuse associated with increased risk of death
Aug 05, 2009 |
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Elderly individuals who have a report of self-neglect or abuse submitted to a social service agency have an associated increased risk of death, according to a study in the August 5 issue of JAMA, a theme issue on violence and hu ...
Some evidence that diets high in calcium and dairy products in childhood may lower mortality
Jul 28, 2009 |
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(PhysOrg.com) -- Suggestive evidence points to the possibility that children who have a diet high in calcium and who consume dairy products may have a lower mortality rate than those who don’t, according to ...
Researchers find gram-negative rods in two Philippine neonatal intensive care units
May 15, 2009 |
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Researchers at Boston University School of Medicine (BUSM) have found a high frequency of multidrug-resistant Gram-negative rods (GNRs) in two of the largest neonatal intensive care units (NICUs) in the city of Manila, Philippines. ...
Happiest European children in Netherlands, Britain ranks low
Apr 21, 2009 |
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The happiest children in Europe are in the Netherlands and Scandinavia but Britain is among the worst places to grow up, according to new British research published Tuesday.
New study finds 'it's never too late to stop drinking'
Apr 16, 2009 |
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Where there is life there is hope and it is never too late to stop drinking, even with the most severe case of alcohol-related liver disease, according to new research from the University of Southampton.
Pollution from livestock farming affects infant health
Oct 08, 2008 |
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A new study in the American Journal of Agricultural Economics explores the effects of pollution from livestock facilities on infant health and finds that production is associated with an increase in infant mortality.
